/Engine/Source/Runtime/AppFramework/Public/Widgets/Colors/SColorThemes.h
Makes a newFColorDragDropto hold on to
static [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FColorDragDrop](API\Runtime\AppFramework\Widgets\Colors\FColorDragDrop) > New ( [FLinearColor](API\Runtime\Core\Math\FLinearColor) InColor, bool bSRGB, bool bUseAlpha, FSimpleDelegate TrashShowCallback, FSimpleDelegate TrashHideCallback, [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [SThemeColorBlocksBar](API\Runtime\AppFramework\Widgets\Colors\SThemeColorBlocksBar) > Origin, int32 OriginPosition )